Which three options are CallHome predefined destination profiles that are supported on Cisco NX-OS? (Choose three.)
Correct Answer: ABD
Refer to the exhibit.
This multilayer Cisco Nexus switch had been the active virtual gateway for Group 1 before it became temporarily unavailable. What will happen to GLBP Group 1 when this device becomes available again?
A. The currently active router remains active.
B. It depends on the priority value that is configured active on the router.
C. The Cisco Nexus switch becomes the active virtual gateway after 600 seconds.
D. It depends on the weighting values that are configured active on the router.
Correct Answer: A
GLBP prioritizes gateways to elect an active virtual gateway (AVG). If multiple gateways have the same priority, the gateway with the highest real IP address becomes the AVG. The AVG assigns a virtual MAC address to each member of the GLBP group. Each member is the active virtual forwarder (AVF) for its assigned virtual MAC address, forwarding packets sent to its assigned virtual MAC address. The AVG also answers Address Resolution Protocol (ARP) requests for the virtual IP address. Load sharing is achieved when the AVG replies to the ARP requests with different virtual MAC addresses.
Note: Packets received on a routed port destined for the GLBP virtual IP address terminate on the local router, regardless of whether that router is the active GLBP router or a redundant GLBP router. This termination includes ping and Telnet traffic. Packets received on a Layer 2 (VLAN) interface destined for the GLBP virtual IP address terminate on the active router.
Which three items must be configured in the port profile client in Cisco UCS Manager? (Choose three.)
A. port profile
C. data center
E. vCenter IP address
F. VM port group
Correct Answer: BCD
After associating an ESX host to a DVS, you can migrate existing VMs from the vSwitch to the DVS, and you can create VMs to use the DVS instead of the vSwitch. With the hardware-based VN-Link implementation, when a VM uses the
DVS, all VM traffic passes through the DVS and ASIC-based switching is performed by the fabric interconnect. In Cisco UCS Manager, DVSes are organized in the following hierarchy:
At the top of the hierarchy is the vCenter, which represents a VMware vCenter instance. Each vCenter contains one or more datacenters, and optionally vCenter folders with which you can organize the datacenters. Each datacenter contains
one or more required datacenter folders. Datacenter folders contain the DVSes.
http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/gui/config/guide/1-3- 1/b_UCSM_GUI_Configuration_Guide_1_3_1/UCSM_GUI_Configuration_Guide_1_3_1_c hapter28.html
FabricPath switch-id is 25 and load-balance is configured for L3/L4 and rotate amount is 14 byte. What information is true about FabricPath switch-id?
A. FabricPath topology requires manual configuration of switch-id which has a range from 1 to 4095
B. Every FabricPath must have a manually configured switch-id for it to form a FabricPath topology
C. FabricPath topology requires manual configuration of switch-id which has a range from 1 to 4099
D. You do not have to manually assign a switch ID unless you are running a virtual port channel plus (vPC+) because the system assigns a switch ID for you when you enable FabricPath
Correct Answer: D
fabricpath switch-id (vPC)
To configure a virtual port channel plus (vPC+) switch ID, use the fabricpath switch-id command. To remove the FabricPath switch from a vPC domain, use the no form of this command.
fabricpath switch-id switch-id
no fabricpath switch-id [ switch-id ]
You do not have to manually assign a switch ID (unless you are running a vPC+); the system assigns a switch ID for you when you enable FabricPath. Note You must assign the same vPC+ switch ID to each of the two vPC+ peer devices
before they can form an adjacency.
This command requires an Enhanced Layer 2 license.
This example shows how to configure a vPC+ switch ID on a FabricPath-enabled device:
switch# configure terminal
switch(config)# vpc domain 1
switch(config-vpc-domain)# fabricpath switch-id 1 Configuring fabricpath switch id will flap vPCs. Continue (yes/no)? [no]
Which command enables NPIV on Cisco Nexus 5000 Series Switches and Cisco MDS switches?
A. switch(config)# npiv enable
B. switch(config)# npivon
C. switch(config)# feature npiv
D. switch(config)# npiv proxy
E. switch(config)# np proxy-enable
Correct Answer: C
This command enables NPIV for all VSANs on the switch.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx- os/san_switching/configuration/guide/b_Cisco_Nexus_7000_NX- OS_SAN_Switching_Configuration_Guide/Cisco_Nexus_7000_NXOS_SAN_Switching_Configuration_Guide_chapter2.html
How is a dynamic vNIC allocated?
A. Dynamic vNICs are assigned to VMs in vCenter.
B. Dynamic vNICs can only be bound to the service profile through an updating template.
C. Dynamic vNICs are bound directly to a service profile.
D. Dynamic vNICs are assigned by binding a port profile to the service profile.
Correct Answer: C
The dynamic vNIC connection policy determines how the connectivity between VMs and dynamic vNICs is configured. This policy is required for Cisco UCS domains that include servers with VIC adapters on which you have installed VMs and
configured dynamic vNICs. Each dynamic vNIC connection policy includes an Ethernet adapter policy and designates the number of vNICs that can be configured for any server associated with a service profile that includes the policy.
For VM-FEX that has all ports on a blade in standard mode, you need to use the VMware adapter policy.
For VM-FEX that has at least one port on a blade in high-performance mode, use the VMwarePassThrough adapter policy or create a custom policy. If you need to create a custom policy, the resources provisioned need to equal the resource
requirements of the guest OS that needs the most resources and for which you will be using high-performance mode.
http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/vm_fex/vmware/gui/config _guide/b_GUI_VMware_VM-FEX_UCSM_Configuration_Guide/b_GUI_VMware_VM- FEX_UCSM_Configuration_Guide_chapter_010.html
Which Cisco MDS feature needs to be enabled for Cisco TrustSec FC Link Encryption to work?
A. feature FC-TSLE
B. feature Trust-Sec
C. feature FC-SP
D. feature ESP
E. feature DHCHAP
Correct Answer: C
Which statement about the Layer 3 card on the Cisco Nexus 5500 Series Switch is true?
A. BGP support is not provided, but RIP, EIGRP, and OSPF support is provided.
B. Up to two 4-port cards are supported with up to 160 Gb/s of Layer 3 forwarding capability.
C. Up to 16 FEX connections are supported.
D. Port channels cannot be configured as Layer 3 interfaces.
Correct Answer: C
From the Cisco NX-OS 5.1(3)N1(1) release and later releases, each Cisco Nexus 5500 Series device can manage and support up to 24 FEXs without Layer 3. With Layer 3, the number of FEXs supported per Cisco Nexus 5500 Series device
is 8. With Enhanced vPC and a dual-homed FEX topology each FEX is managed by both Cisco Nexus 5000 Series devices. As a result, one pair of Cisco Nexus 5500 Series devices can support up to 24 FEXs and 16 FEXs for Layer 2 and
Which function does the graceful restart feature allow a Cisco Nexus 7000 Series router to perform?
A. Perform a rapid route convergence.
B. Initialize a standby supervisor transparently when one is present.
C. Remain in the data forwarding path through a process restart.
D. Maintain a management connection throughout a router restart.
Correct Answer: C
Graceful Restart and Non Stop Routing both allow for the forwarding of data packets to continue along known routes while the routing protocol information is being restored (in the case of Graceful Restart) or refreshed (in the case of Non Stop Routing) following a processor switchover. When Graceful Restart is used, peer networking devices are informed, via protocol extensions prior to the event, of the SSO capable routers ability to perform graceful restart. The peer device must have the ability to understand this messaging. When a switchover occurs, the peer will continue to forward to the switching over router as instructed by the GR process for each particular protocol, even though in most cases the peering relationship needs to be rebuilt. Essentially, the peer router will give the switching over router a "grace" period to re-establish the neighbor relationship, while continuing to forward to the routes from that peer.
Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/high- availability/solution_overview_c22-487228.html
The Connectivity Management Processor monitors the active supervisor module on a Cisco Nexus 7000 switch and will reboot the device in the event of a lights-out management issue. However, which option includes features that provide similar benefits in the absence of the Connectivity Management Processor?
A. high-availability functionality from features such as vPC and NSF
B. traditional system connectivity models like SNMP, GUI, or SSH
C. Cisco FabricPath
D. VDC failover
Correct Answer: A
vPC uses the vPC peer-keepalive link to run hello messages that are used to detect a dual- active scenario. A Gigabit Ethernet port can be used to carry the peer-keepalive messages. A dedicated VRF is recommended to isolate these control messages from common data packets. When an out-of-band network infrastructure is present, the management interfaces of the Cisco Nexus 7000 supervisor could be also used to carry keep-alive connectivity using the dedicated management VRF. When the vPC peer-link is no longer detected, a dual-active situation occurs, and the system disables all vPC port channel member on the "secondary" vPC peer (lower vPC role priority value). Also SVI interfaces associated to a vPC VLAN are suspended on the secondary switch. As a result, in this condition only the "primary" vPC peer actively forwards traffic on the vPC VLANs. Multiple peer-keepalive links can be used to increase resiliency of the dual-active detection mechanism.
Both the Cisco Catalyst 6500 and the Cisco Nexus 7000 offer a variety of high-availability features. Some of the primary features to highlight are In Service Software Upgrade (ISSU), Stateful Switchover (SSO), and Nonstop Forwarding (NSF). The operation and the behavior of these features are unique to the respective platform and can be independently executed without affecting the interoperability between the two platforms.
Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series- switches/white_paper_c11_589890.html
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